1) Make red with blood 1) Stain 
to cover with blood
• (v. t.) To stain or cover with blood; to make bloody, or of a blood-red color; as, an ensanguined hue.
En·san'guine transitive verb To stain or cover with blood; to make bloody, or of a blood-red color; as, an ensanguined hue. 'The ensanguined field.' Milton. 
ensanguine 1. To stain or cover with blood; to make bloody, or of a blood-red color; as, an ensanguined hue. 2. To cover or stain with, or as if, with blood.
to stain or cover with or as with blood: a flag ensanguined with the blood of battle.